TW200746118A - Optical pickup apparatus - Google Patents

Optical pickup apparatus

Info

Publication number
TW200746118A
TW200746118A TW096108525A TW96108525A TW200746118A TW 200746118 A TW200746118 A TW 200746118A TW 096108525 A TW096108525 A TW 096108525A TW 96108525 A TW96108525 A TW 96108525A TW 200746118 A TW200746118 A TW 200746118A
Authority
TW
Taiwan
Prior art keywords
light
polarized light
recording medium
information recording
element group
Prior art date
Application number
TW096108525A
Other languages
English (en)
Chinese (zh)
Inventor
Masahiko Nishimoto
Naoki Nakanishi
Masayuki Ono
Original Assignee
Matsushita Electric Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of TW200746118A publication Critical patent/TW200746118A/zh

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G11B7/0903—Multi-beam tracking systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
TW096108525A 2006-03-30 2007-03-13 Optical pickup apparatus TW200746118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006096121A JP2007272980A (ja) 2006-03-30 2006-03-30 光ピックアップ装置

Publications (1)

Publication Number Publication Date
TW200746118A true TW200746118A (en) 2007-12-16

Family

ID=38563255

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096108525A TW200746118A (en) 2006-03-30 2007-03-13 Optical pickup apparatus

Country Status (5)

Country Link
US (1) US20090168628A1 (enrdf_load_stackoverflow)
JP (1) JP2007272980A (enrdf_load_stackoverflow)
CN (1) CN101346763A (enrdf_load_stackoverflow)
TW (1) TW200746118A (enrdf_load_stackoverflow)
WO (1) WO2007113983A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5007196B2 (ja) * 2007-10-22 2012-08-22 株式会社日立メディアエレクトロニクス 光ピックアップ装置
WO2009072179A1 (ja) * 2007-12-03 2009-06-11 Pioneer Corporation 記録装置及び方法、コンピュータプログラム、並びに記録媒体
KR101330201B1 (ko) * 2010-07-12 2013-11-15 도시바삼성스토리지테크놀러지코리아 주식회사 광 픽업 장치 및 이를 적용한 광 디스크 드라이브
JP6064265B2 (ja) * 2012-12-12 2017-01-25 パナソニックＩｐマネジメント株式会社 光ピックアップおよび光記録再生装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09180244A (ja) * 1995-12-21 1997-07-11 Victor Co Of Japan Ltd ２層光ディスクのピックアップ装置
CN1208844C (zh) * 1999-11-09 2005-06-29 松下电器产业株式会社 光电子装置
JP2003099975A (ja) * 2001-09-25 2003-04-04 Olympus Optical Co Ltd 多層光記録再生装置
JP4389154B2 (ja) * 2003-08-18 2009-12-24 ソニー株式会社 光ピックアップ及びディスクドライブ装置
JP2006073132A (ja) * 2004-09-03 2006-03-16 Ricoh Co Ltd 光ピックアップ装置・光源側ユニットおよび多層記録媒体ドライブ装置

Also Published As

Publication number Publication date
JP2007272980A (ja) 2007-10-18
US20090168628A1 (en) 2009-07-02
WO2007113983A1 (ja) 2007-10-11
CN101346763A (zh) 2009-01-14

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